Chicony Power Technology Co., Ltd.

Yu-Xian Zeng

Yung-Hung Hsiao

Cheng-Chang Hsiao

Chia-Hsien Yen

Che-Han Li

A power supply management circuit includes a first contact receiving a transmitted voltage, a second contact outputting the transmitted voltage, a relay coupled between the first contact and the second contact, a discharge unit coupled to the relay in parallel, and an activation unit coupled to the discharge unit. When the power supply management circuit receives a control signal, the discharge unit is turned on or off, and the relay enters into a switching procedure. When the control signal is an ON signal, the activation unit generates a driving voltage to turn on the discharge unit, the relay enters into a turn-on procedure, and the transmitted voltage is transmitted to the second contact through the discharge unit; after the switching procedure is completed, the activation unit stops generating the driving voltage to turn off the discharge unit, and the transmitted voltage is transmitted to the second contact through the relay.

Power supply management circuit and power supply using the same

A power supply with lightning protection includes a surge voltage suppression apparatus, an electromagnetic interference control circuit, a surge current bypass apparatus, an active bridge rectifier circuit, a power factor correction circuit, and a DC-to-DC conversion circuit. The surge voltage suppression apparatus is used to increase a tolerance of a surge voltage for the power supply. The electromagnetic interference control circuit is coupled to the surge voltage suppression apparatus. The surge current bypass apparatus is used to increase a tolerance of a surge current for the power supply. The active bridge rectifier circuit is used to rectify an input voltage. The power factor correction circuit is used to adjust the rectified input voltage to provide an adjusted input voltage on a bulk capacitor. The DC-to-DC conversion circuit is used to convert the adjusted input voltage into a DC output voltage.

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Taipei, Taiwan

Yu-Xian Zeng